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양 끝이 개방된 경사진 채널 내에서의 혼합대류에 관한 수치적 연구
박일용(Ri-Long Piao),배대석(Dae-Seok Bae) 한국마린엔지니어링학회 2004 한국마린엔지니어링학회 학술대회 논문집 Vol.2004 No.-
A numerical calculation is performed to study the effects of buoyancy force on the heat transfer characteristics of laminar forced convection flow in inclined parallel plates with the upper part is cooled uniformly and the lower part is heated uniformly. Numerical results are presented for Prandtl number is 909, the Reynolds number ranges from 4.0xl0-3 to 1.13xl0-l, and the angle of inclination ranging from 0 to 90 deg from the horizontal line. It is found that the flow pattern of mixed convection in inclined parallel plates can be classified into four patterns which is affected by Reynolds number and the angle of inclination.
PIV를 이용한 평행평판 내의 혼합대류의 정략적 가시화
박일용(Ri-Long Piao),배대석(Dae-Seok Bae) 한국마린엔지니어링학회 2003 한국마린엔지니어링학회 학술대회 논문집 Vol.2003 No.-
The PIV(Particle Image Velocimetry) with liquid crystal tracers is used for visualizing and analysis of the mixed convection in the parallel plates with the upper part cooled and the lower part heated. It is found that the flow pattern of mixed convection in the parallel plates can be classified into three patterns which was affected by Reynolds number. Also, the periodic nature is confirmed, and visualized in experiment.
경사진 사각채널 내 고 점성유체의 혼합대류에 관한 3차원 수치 해석
박일용(Ri Long Piao),배대석(Dae Seok Bae) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
Mixed convection heat transfer in three-dimensional inclined rectangular channel (width/height=4) filled with high viscous fluid (Pr=909) has been investigated computationally under various operating conditions. In this study, the Reynolds number was varied from 4×10?³ to 6.4×10?², the Raylegh number from 10³ to 10? and the angle of inclination from 0 to 45 degree. The governing equations are discretized using the finite volume method. From a parametric study, Nusselt number distributions were obtained and effects of Reynolds, Rayleigh numbers and angle of inclination on high Prandtl number mixed convection in 3-D inclined rectangular channels were investigated.
양 끝이 개방된 경사진 채널 내에서의 혼합대류에 관한 수치적 연구
박일용,배대석,Piao Ri-Long,Bae Dae-Seok 한국마린엔지니어링학회 2005 한국마린엔지니어링학회지 Vol.29 No.1
A numerical calculation is performed to study the effects of buoyancy force on the heat transfer characteristics of laminar forced convection flow in inclined parallel plates with the upper part cooled and the lower Part heated uniformly. Numerical results are presented for the Reynolds number ranges from $4.0\times10^{-3}$ to $1.13\times10^{-1}$. the angle of inclination, $\theta$. from 0 to 90 degree and Pr of the high viscosity fluid is 909. It is found that the flow pattern of mixed convection in inclined parallel Plates can be classified into four patterns which affected by Reynolds number and the angle of inclination.